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Meaning of damping-off

damp•ing-off

Pronunciation: (dam'ping-ôf', -of'), [key]
— n. Plant Pathol.
  1. a disease of seedlings, occurring either before or immediately after emerging from the soil, characterized by rotting of the stem at soil level and eventual collapse of the plant, caused by any of several soil fungi.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.